Saw-table.



E. J. OSBURN, Jn.

` v SAW TABLE.

APPLIUATIDT FILED JULY l, 1909.

984,237. Patented Feh.14,1911.

11g/a3 Arron/ver 'ml Nonni: nur: c.. rnomurnmkwumnamn. n. c.

in which drawingsff- UNITED STATES PATENT OFFICE.

ELIJAH J. OSBURZN, JR., 0F BROOKLYN, NEW YVORVK.

SAW-TABLE.

To all whom lit may concern:

Be it known thatr I, ELIJAH J. OsBUuN, Jr., of Brooklyn, Kings county, State of New York, have invented certain new and useful Iin nrovements in Saw-Tables, of Which the ollowing is a full, clear, and ex act specification, such as will enable others skilled in the art to which it appertains .'to lmake and use the same.

My invention relates to a'plate for saw tables, by which a wide degree of adjustment of the saw isfallowed and by which the use of plurality of sa Ws in gangs is permitted.

In carrying out my invention, I provide a plate which is intended to set in a recess i u1 a table and `in which' are fastened a number ospacer bars. These bars are arranged t'oha-ve one or more of the saws extended between them and they are fastened in the plate'in such a way that they may be freely adjusted to permit of equal 'free adjustment of the saw plates. Preferably, said 'bars have theirends arranged to' interlock with correspon dingr surfaces on the plate, of which surfaces one is carried on alnovable clam ing head, so that the mani ulation of this clamping head secures or re eases the spacer bars. Y.

Myinvention involves other features ,0f importance, all of whichl Will .be full set forth hereinafter and particularlypolnted out in the claims. I

. Reference is had to the accompanying vdrawin s, which re resent, 'as an example,

myfinvention,

the pre erred embo uncut of Figure l is a plan -vievv of the plate with the spacer barsthereon; Fig'. 2 isla longitu 'dinal section thereof; and Fig. 3 is an en-A larged bottom 1an view shoWingthe cla-mp ing head.- and t e connected'parts.

a indicates the plate,A which isv Set into a recess into the saw table. This plate is pref? v erably provided with linger 4holes a to facilitate-lifting it in and out of posit-ion, and

also with stud pins a2, which engage the' table to hold the plate'spaced-from the edge .of the opening in whichthe plateis situated.

This plate r( is formed of metal Vand has an opening as therein. Said' opening a is located over the position of the saw arbor V(see the broken `lines Iin Figl 2), and is so positioned that the saws (one oiiwhich is indicated at o in Fig. 2) through the opening. The Workgis moved clamping heads is drawnback in ay project npwa rd' Serial N o. 505,358.

over the table and plate a., and in so moving encounters the saws 'which out the Work.

One end 'wall of the 'opening a in the plate a is under-cut and serrated,as indicated at (at, and below this edge is arranged a sup 'porting plate d, Which is riveted or other- W1se fastened to the bottom of the plate a,

edge o5 and is under-cut at. its inner edge as Fig. 2 illustrates. This clamping head is 4formed with slots e (see Fig. 3), in which are received pins f securedto the plate a.

The slots ev are transverselyA dispose and in this manner the clamping head e is arranged t o.niov,e from the inward position shown in Fig. 2 to an out-Ward position in which the under-cnt inner edge ofthe head e lies in a position ooextensive with the edge a ofthe plate a.

y g indicates a cam or other desired mea-nsv which maybe employed for manipulating the clampingl head, so that it will take either of said positions described.

-4 7a. indicatesthe spacer bars. These are of a; lengthqual to the length of the opening a. and lie in said opening parallel to each other, so that the savvsmay project between fthem. Each end'of the spacer bars h is. "formed Withan' under-'cut surface h at the and aandaref inclined correspondingly to such surfaces.

Tornsert the spacer bars in fposition the rom the position shown in Fig. V2 and the-ends of the arsopposite the clamping head are first engaged with the supporting plate d-a-nd serrated edge o4, the serrations of thebars locking with the serrationsof the latenl and holding the barsproperlv space from each other. When.' this'has heen accomplished, the other ends of the hars are dropped down upon the serrated `edge a and the hars will thus be supported in opening a. Finally the clamping'head is returned yto its active "posiftion so that it enga-ges lthe under-cut edges 71. at the ends of the 'bars adjacent to the los'` head thus irmly locking the spaceibars in` z position.

Thisdevice, it will be observed, provides for very rapid and easy adjustment. of the Spacer bars and holds them securely in position. 'By thus adjusting the bars their positions may be changed to suit changesin ythe positions of the saws, as Well as the number and size of the saws. l y

The invention is: adapted to any standard eiroula'r saw and the plate'xvith its adjustments may be sti-proportioned as to take the plaeeof. the Weoden saWplat-'e .With which such machines `are usually* provided.

Having thus. described my invention what I claim as new and desire to .seenre.;by Letters Patent of the United States, is:

1. A saw table plate. having an openingtherein, spacer barsfitted-'in said opening' andxa. clamping' head movable in'to and ont vot'enga ement With'the ends of the bars-to clamp t ern 'into position.

2.' Asew table plate having an opening therein, a spacer bar' one end of-whieh is interloeked'vvith a Wall of the'opening-:md a

'clamping head'movable inthe plane of the y.bar to `engage and disengage the opposite-end of the spacer bar to hold-it in position.=

3.1-A-saw table -platehavingfan yopening' therein,' opposite -Wallsof-"whijch are oppofsitely beveled,v a supportingmember-under oneo'f saidibeveled Walls, a'. clamping head movable back and forth under either of seid beveled'walls and spacer bars having ends shapedcorrespondingly' to 'said beveled' walls and lalso beveled respectively to engage-the Supporting member and 'clamping` hed, for thepurpo'se speeiied. 1 I 41.-,- A `savv't-.a-ble'vplate` 'li'aving' anvopen'ing therein;4 'opposite Valls of which* :areopposite'ly beveled, a--snnpporinig inen'ibeifunder one ofl said beveled" Walls, a clamping head two subscribing Witnesses.

movable backend forthlunder either of said beveledwalls and' s'pa'cer bars having ends sha ed correspondingly to said beveled Walls an also beveled respectively to engage the supportmg member and clamping heed, for the purpose specified, said oppositelybeveled Walls of the opening in the plate and the ends of the spacer bars engaged therewith being serrated and adapted tot in-terengu-gu.:

.5. A saw. tableplate having an opening therein, spacer vbars fittingin 'said opening and .a clamping head carried byy said plate,

yedjeeeI-it tothe ends of said bars ,and 1nov able laterally toward and from said end` for simultaneously securing or releasing al' ot' said bars.

6. A saw table platehaving in opening therein7 spacer bars'fitting in said openingI means at-o'ne end of said; opening-for snpportingv said bars, and retaining them aga-1 net 4lateral "movement and a mend-)er at the o)- posite end-of said. mjiening inovabloirvai'd and from the ends of all said bars for en.- gaging therewith-.to supportthe bars and hold` them against lateral displacement.

7.- A saw' tableplate having opening-there in with a serrated edgeat one end and series of spacer ba-rs with serrated. ends arranged to enga-ge with the serrated edgesotl the plate, and A :rated'edgeand-movable toward and iirlon'i the a clamping head-having-- 'ser- 'opposite ends-of said bars forfsnpporti-nfr laterallyand i holding them against 1- latere displeeeinentfg a l f In testimony whereof I have signed my name to this specification in the presence .of 

